### QPx_GetPictureInfo

QPx_GetPictureInfo(pictVar; pictWidth; pictHeight; pixelDepth; hRes; vRes):error
| pictVar | Picture | Picture variable
| pictWidth | Longint | Image width in pixels
| pictHeight | Longint | Image height in pixels
| pixelDepth | Longint | Image depth
| hRes | Longint | Horizontal image resolution in dots per inch (dpi)
| vRes | Longint | Vertical image resolution in dots per inch (dpi)
| error | Longint | Error result

Returns the properties of a 4D picture variable.

The source picture is passed in the pictVar parameter.

Image dimensions are returned in pictWidth and pictHeight, horizontal and vertical resolution in hRes and vRes and pixel depth in pixelDepth. Possible values for pixelDepth are:

qpx_BlackAndWhite | 1 | Black and white
qpx_FourColors | 2 | Four colors
qpx_SixteenColors | 4 | Sixteen colors
qpx_TwoHundredFiftySixColors | 8 | 256 colors
qpx_ThousandsColors | 16 | Thousands of colors
qpx_MillionColors | 24 | Million of colors
qpx_MillionColorsPlusAlpha | 32 | Million of colors plus alpha
qpx_FourGrays | 34 | Four grays
qpx_SixteenGrays | 36 | Sixteen grays
qpx_TwoHundredFiftySixGrays | 40 | 256 grays

Example

``Get picture info` `` `C_LONGINT($error)` `C_PICTURE($picture)` `C_LONGINT($width;$height;$depth;$hRes;$vRes)` `` `$picture:=[Images]Picture` `` `$error:=QPx_GetPictureInfo ($picture;$width;$height;$depth;$hRes;$vRes)` `` `If ($error=qpx_noErr)` ``Work with picture info` `End if`

Related commands

QPx_GetCompressedPictureInfo | Returns information about a QuickTime-compressed picture

QPix © Escape
Generated by QDoc 2.8 on Wed, Feb 17, 2010 17:43:13